Rework Firestrike or remove it entirely

[Overwatchero-1780]

@JƐƐSHǃ-1713

(If you think the above paragraph is stupid, then stop using those arguments for Damage Orb. Firestrike is fine btw.)

Yeah because they’re totally the same thing. Fire strike can linger for 10 seconds, dealing continuous damage in a radius. /Facepalm